CN113107767B - Environment self-adaptive blade and control method thereof - Google Patents

Environment self-adaptive blade and control method thereof Download PDF

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Publication number
CN113107767B
CN113107767B CN202110385286.XA CN202110385286A CN113107767B CN 113107767 B CN113107767 B CN 113107767B CN 202110385286 A CN202110385286 A CN 202110385286A CN 113107767 B CN113107767 B CN 113107767B
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China
Prior art keywords
blade
main shaft
movable end
fixed end
control system
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CN202110385286.XA
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Chinese (zh)
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CN113107767A (en
Inventor
李力森
蔡安民
林伟荣
李媛
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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Publication of CN113107767A publication Critical patent/CN113107767A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0232—Adjusting aerodynamic properties of the blades with flaps or slats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/40—Ice detection; De-icing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Abstract

The invention discloses an environment self-adaptive blade and a control method, wherein the blade comprises: the blade fixing end, the blade movable end, the main shaft fixing end and the main shaft movable end are arranged on the main shaft; one end of the fixed end of the main shaft is connected with the hub, and the other end of the fixed end of the main shaft is connected with the movable end of the main shaft in a sliding way; the inner part of the fixed end of the main shaft is hollow; the diameter of the fixed end of the main shaft is larger than that of the movable end of the main shaft; one section of the movable end of the main shaft is accommodated in the fixed end of the main shaft, and the other end of the movable end of the main shaft is fixedly connected with the movable end of the blade; the periphery of the fixed end of the main shaft is fixed with a fixed end of the blade; according to the invention, by designing the movable end of the blade, the length of the blade can be changed according to working conditions, and the blade corresponds to different environments; the modular design of the blades is realized, and one type of blade can adapt to the wind field conditions of multiple areas.

Description

Environment self-adaptive blade and control method thereof
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to an environment self-adaptive blade and a control method thereof.
Background
In recent years, with the maturity of matching of wind power technology and an industrial chain, the wind turbine generator is developed towards large power, platform serialization and wind farm customization, and the installation place of the wind turbine generator is developed towards low wind speed areas and offshore wind farms. In order to maximize the utilization of wind energy resources and reduce the cost of the whole wind turbine generator, manufacturers of the whole wind turbine generator have to adopt a platform development mode, and one generator platform is matched with blades with various lengths so as to meet the requirements of different wind speed areas. The shorter blades can be used in areas with high wind speed, and the longer blades can be used in areas with low wind speed. For example, the length of a 3MW unit platform which is mainstream in the current market ranges from 60 meters to approximately 80 meters, that is, one unit platform is correspondingly matched with a series of blades to meet installation requirements of different wind speed areas, which puts more demands on the types of the blades.
The cost of the blade mainly comprises development cost, mold cost and production cost, and the blade is various, so that the loading amount of the blade with a single model is reduced, and the development cost and the mold cost of the blade are high. Each type of blade can only be adapted to a specific wind speed area, for example, a long blade is designed to be adapted to a low wind speed area so as to obtain more wind energy, and if a unit with the long blade is installed in a high wind speed area, the safety of the unit is difficult to guarantee; the short blade is designed to adapt to high wind speed areas and can resist higher wind speed, even typhoon and the like, but the short blade has poor power generation performance in a low wind speed section.
At present, the unit (except blades) design of a complete machine manufacturer has already been in a platform design, and one platform can be matched with blades of various models, so that the standardization of the unit platform is realized, and the purpose of reducing cost is achieved through a scale effect. However, the design and development of the blades still adopt single design conditions, and the single type of blades cannot meet the requirements of areas with various wind speeds at the same time.
In order to capture and utilize wind energy as much as possible, the prior art approach is mainly realized by continuously increasing the diameter of an impeller and optimizing the blade profile, the investment cost is high, the utilization rate of materials is low, the blade in the prior art cannot change the section shape of the blade and the length of the blade in real time in the use process, so that the wind energy cannot be maximally utilized under different wind parameter working conditions (wind power density, wind speed, air density, turbulence intensity, wind shear and the like), the wind energy captured by the blade is limited, and the effective utilization rate is not high.
When severe working conditions such as a limiting wind speed are met, the wind turbine generator stops running to avoid damage to the wind turbine generator mainly by controlling feathering of the blades in the prior art, and the utilization rate of wind energy is reduced.
When dealing with severe working conditions such as blade icing, the prior art is mainly realized by heating or intervention of external equipment, and not only is the deicing effect not obvious, but also real-time deicing cannot be realized.
Disclosure of Invention
The invention aims to provide an environment self-adaptive blade and a control method thereof, and aims to solve the technical problem that a single-type blade cannot meet the requirements of various wind speed areas at the same time in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environmentally adaptive blade comprising: the blade fixing end, the blade movable end, the main shaft fixing end and the main shaft movable end are arranged on the blade fixing end;
one end of the fixed end of the main shaft is connected with the hub, and the other end of the fixed end of the main shaft is connected with the movable end of the main shaft in a sliding way; the inner part of the fixed end of the main shaft is hollow; the diameter of the fixed end of the main shaft is larger than that of the movable end of the main shaft; one section of the movable end of the main shaft is accommodated in the fixed end of the main shaft, and the other end of the movable end of the main shaft is fixedly connected with the movable end of the blade;
the periphery of the main shaft fixed end is fixed with a blade fixed end.
The invention further improves the following steps: the blade fixed end is provided with an accommodating cavity which can accommodate part of the blade movable end.
The invention further improves the following steps: the telescopic driving mechanism is used for driving the movable end of the main shaft to axially move.
The invention further improves the following steps: the telescopic driving mechanism is a hydraulic driving mechanism, a pneumatic driving mechanism or an electric driving mechanism.
The invention further improves the following steps: a plurality of auxiliary supports and auxiliary support driving mechanisms are arranged on the fixed end of the main shaft; the auxiliary support driving mechanism is used for driving the auxiliary support to stretch and retract along the radial direction of the fixed end of the main shaft and is used for supporting the fixed end of the blade.
The invention further improves the following steps: the movable end of the main shaft is also provided with a plurality of elastic supports.
The invention further improves the following steps: and a vibration motor for ice breaking is arranged in the fixed end and the movable end of the blade.
The invention further improves the following steps: the edge of the fixed end of the blade is provided with a wing plate; the pterygoid lamina passes through the pivot to be installed at the edge of blade stiff end, through the rotation of control pterygoid lamina, can change the cross sectional shape at blade stiff end.
A control method of an environment self-adaptive blade comprises the following steps:
s1, the blade central control system receives the environmental parameters tested by the environmental perception system in real time;
s2, judging the working condition of the blade by the blade profile central control system according to the collected environmental parameters;
and S3, controlling the blade to work by the blade profile central control system according to the working condition of the blade.
The invention further improves the following steps: the environmental parameters specifically comprise wind speed and icing thickness;
the blade profile central control system judges the working condition of the blade according to the collected environmental parameters and specifically comprises the following steps: the wind speed exceeds a set first threshold value and is a limit wind speed working condition; the severe icing working condition is that the icing thickness exceeds a set icing threshold; the rest is non-limit working condition;
the blade profile central control system controls the working steps of the blades according to the working conditions of the blades, and the blade profile central control system specifically comprises the following steps: for the working condition of the ultimate wind speed, the blade profile central control system starts an automatic risk avoiding mode, controls the movable end of the supporting blade to recover and reduce the length of the blade, controls the wing plate to rotate to reduce the wind area of the blade and continues to generate electricity; when the wind speed exceeds a second threshold value, the blades feathering stops generating electricity; for the working condition of severe ice coating, the blade-shaped central control system controls the expansion of the movable end of the main shaft to break ice; meanwhile, the vibration motor is controlled to work to accelerate ice breaking; for the non-limit working condition, the blade profile central control system starts the maximized wind energy capture function, the length of the blade is longest, the area of the blade profile is largest, the surface is smoothest, and the wind area of the blade is increased.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an environment self-adaptive blade and a control method, wherein the blade comprises: the blade fixing end, the blade movable end, the main shaft fixing end and the main shaft movable end are arranged on the main shaft; one end of the fixed end of the main shaft is connected with the hub, and the other end of the fixed end of the main shaft is connected with the movable end of the main shaft in a sliding way; the inner part of the fixed end of the main shaft is hollow; the diameter of the fixed end of the main shaft is larger than that of the movable end of the main shaft; one section of the movable end of the main shaft is accommodated in the fixed end of the main shaft, and the other end of the movable end of the main shaft is fixedly connected with the movable end of the blade; the periphery of the fixed end of the main shaft is fixed with a fixed end of the blade; according to the invention, by designing the movable end of the blade, the length of the blade can be changed according to working conditions, and the blade corresponds to different environments; the modular design of the blades is realized, and one type of blade can adapt to the wind field conditions of multiple areas.
Furthermore, the vibrating motors used for ice breaking are arranged in the fixed ends of the blades and the movable ends of the blades, so that ice breaking can be facilitated, and normal work of the fan is guaranteed.
Furthermore, the edge of the fixed end of the blade is provided with a wing plate; the pterygoid lamina passes through the pivot to be installed at the edge of blade stiff end, through the rotation of control pterygoid lamina, can change the cross sectional shape at blade stiff end to satisfy the requirement in different wind speed areas.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an environmentally adaptive blade according to the present invention;
FIG. 2 is a schematic structural diagram of a contracted state of the environmentally adaptive blade shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the fixed end of the blade;
FIG. 4 is a schematic view of the fixed end wing plate of the blade shown in FIG. 3 after rotating a certain angle;
FIG. 5 is a flowchart of a method for controlling an environment adaptive blade according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
Example 1
Referring to fig. 1 and fig. 2, the present invention provides an environment adaptive blade, including: a blade fixed end 41, a blade movable end 42, a main shaft fixed end 2001 and a main shaft movable end 2002.
One end of the main shaft fixed end 2001 is connected with the hub 1, and the other end is connected with the main shaft movable end 2002 in a sliding manner; the spindle fixing end 2001 is hollow inside; the diameter of the fixed end 2001 of the main shaft is larger than that of the movable end 2002 of the main shaft; one end of the movable end 2002 of the main shaft is accommodated in the fixed end 2001 of the main shaft, and the other end is fixedly connected with the movable end 42 of the blade.
A blade fixing end 41 is fixed to the outer periphery of the main shaft fixing end 2001.
The blade fixing end 41 is provided with a containing cavity, so that when the telescopic driving mechanism drives the main shaft movable end 2002 to be recycled into the main shaft fixing end 2001, part of the blade movable end 42 can be contained, the length of the whole blade can be adjusted, and different wind field requirements can be met. The telescopic driving mechanism may be a hydraulic driving mechanism, a pneumatic driving mechanism, or an electric driving mechanism, and is configured to drive the movable end 2002 of the spindle to move axially.
A plurality of auxiliary supports 3 and auxiliary support driving mechanisms 5 are arranged on the main shaft fixing end 2001; the auxiliary support driving mechanism 5 is used for driving the auxiliary support 3 to extend and retract along the radial direction of the main shaft fixed end 2001 and used for supporting the blade fixed end 41.
The movable end 2002 of the main shaft is also provided with an elastic support 6; the periphery of the elastic support 6 is arc-shaped, and the interior of the elastic support is supported by a spring; ejecting the movable end 42 of the support blade in a free state; when the movable end 2002 of the spindle is retracted into the fixed end 2001 of the spindle, the arc-shaped outer circumference of the elastic support 6 is compressed by the fixed end 2001 of the spindle to overcome the elastic force of the spring and be retracted into the movable end 2002 of the spindle.
The blade fixed end 41 and the blade movable end 42 are also provided with a vibration motor for ice breaking.
Example 2
Referring to fig. 3 and 4, an environmental adaptive blade according to this embodiment is based on embodiment 1, and a wing plate 410 is disposed at an edge of a blade fixing end 41; the wing plate 410 is installed at the edge of the blade fixing end 41 through a rotating shaft, and the cross-sectional shape of the blade fixing end 41 can be changed by controlling the rotation of the wing plate 410, so as to adapt to different wind conditions.
Example 3
Referring to fig. 5, the present invention provides a method for controlling an environment adaptive blade, which can autonomously determine the length and the profile of the blade according to the wind energy quality and wind load of a wind turbine at a wind turbine site, and specifically includes the following steps:
s1, the leaf-type central control system receives the environmental parameters tested by the environmental perception system in real time: wind speed, icing conditions;
s2, judging the working condition of the blade by the blade profile central control system according to the collected environmental parameters; the method specifically comprises the following steps: 1) the wind speed exceeds a set first threshold value to be a limit wind speed working condition; 2) the severe icing working condition is that the icing thickness exceeds a set icing threshold; 3) the rest is non-limit working condition;
s3, for the working condition of the ultimate wind speed, the blade profile central control system starts an automatic risk avoiding mode, controls the movable end 42 of the supporting blade to recover and reduce the length of the blade, controls the wing plate 410 to rotate to reduce the wind area of the blade, and continues to generate electricity; when the wind speed exceeds a second threshold value, the blades feathering stops generating electricity;
for the working condition of severe ice coating, the blade-shaped central control system controls the movable end 2002 of the main shaft to stretch out and draw back at high frequency to break ice; meanwhile, the vibration motor can be controlled to work to accelerate ice breaking;
for a non-limit working condition, the length and the blade profile of the blade can change in real time, when the wind speed is low, the blade profile central control system starts a maximized wind energy capturing function, the length of the blade is longest, the area of the blade profile is largest, and the surface is smoothest, so that the wind area of the blade is increased to the maximum extent, and the utilization rate of wind energy is improved.
The blade profile central control system continuously accumulates various parameters of wind power density, wind speed, air density, turbulence intensity, wind shear and the like of the point under various environmental conditions, and establishes the corresponding relation between the load and the length of the blade and the blade profile under various environmental conditions; the first threshold, the second threshold and the icing threshold are continuously and dynamically adjusted so that the blade can be more suitable for the wind conditions of the point.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (6)

1. An environmentally adaptive blade, comprising: a blade fixed end (41), a blade movable end (42), a main shaft fixed end (2001) and a main shaft movable end (2002);
one end of the main shaft fixed end (2001) is connected with the hub (1), and the other end of the main shaft fixed end is connected with the main shaft movable end (2002) in a sliding manner; the inner part of the main shaft fixing end (2001) is hollow; the diameter of the main shaft fixed end (2001) is larger than that of the main shaft movable end (2002); one end of the main shaft movable end (2002) is accommodated in the main shaft fixed end (2001), and the other end is fixedly connected with a blade movable end (42);
a blade fixing end (41) is fixed on the periphery of the main shaft fixing end (2001);
the fixed end (41) of the blade is provided with an accommodating cavity which can accommodate part of the movable end (42) of the blade;
a plurality of auxiliary supports (3) and auxiliary support driving mechanisms (5) are arranged on the main shaft fixing end (2001); the auxiliary support driving mechanism (5) is used for driving the auxiliary support (3) to radially extend and retract along the main shaft fixed end (2001) and used for supporting the blade fixed end (41);
the movable end (2002) of the main shaft is also provided with a plurality of elastic supports (6); the periphery of the elastic support (6) is arc-shaped, and the interior of the elastic support is supported by a spring; ejecting the movable end (42) of the supporting blade in a free state; when the movable end (2002) of the main shaft is retracted into the fixed end (2001) of the main shaft, the arc periphery of the elastic support (6) is extruded by the fixed end (2001) of the main shaft and is retracted into the movable end (2002) of the main shaft by overcoming the elastic force of a spring;
the fixed end (41) and the movable end (42) of the blade are also provided with a vibration structure for ice breaking.
2. The environmentally adaptive blade of claim 1 further comprising a telescopic drive mechanism for driving the free end of the main shaft to move axially.
3. The environmentally adaptive blade of claim 2, wherein the telescopic driving mechanism is a hydraulic driving mechanism, a pneumatic driving mechanism or an electric driving mechanism.
4. An environmentally adaptive blade according to claim 1, wherein the edge of the fixed end (41) of the blade is provided with a wing plate (410); the wing plate (410) is mounted on the edge of the blade fixing end (41) through a rotating shaft, and the cross-sectional shape of the blade fixing end (41) can be changed by controlling the rotation of the wing plate (410).
5. The method for controlling an environmentally adaptive blade according to any one of claims 1 to 4, comprising:
s1, the leaf-shaped central control system receives the environmental parameters tested by the environmental perception system in real time;
s2, judging the working condition of the blade by the blade profile central control system according to the collected environmental parameters;
and S3, controlling the blade to work by the blade profile central control system according to the working condition of the blade.
6. The control method according to claim 5, characterized in that the environmental parameters comprise in particular wind speed, icing thickness;
the blade profile central control system judges the working condition of the blade according to the collected environmental parameters and specifically comprises the following steps: the wind speed exceeds a set first threshold value and is a limit wind speed working condition; the severe icing working condition is that the icing thickness exceeds a set icing threshold; the rest is non-limit working condition;
the blade profile central control system controls the working steps of the blades according to the working conditions of the blades, and the blade profile central control system specifically comprises the following steps: for the working condition of the ultimate wind speed, the blade profile central control system starts an automatic risk avoiding mode, controls the movable end of the supporting blade to recover and reduce the length of the blade, controls the wing plate to rotate to reduce the wind area of the blade and continues to generate electricity; when the wind speed exceeds a second threshold value, the blades feathering stops generating electricity; for the working condition of severe ice coating, the blade-shaped central control system controls the expansion of the movable end of the main shaft to break ice; meanwhile, the vibration motor is controlled to work to accelerate ice breaking; for the non-limit working condition, the blade profile central control system starts the maximized wind energy capture function, the length of the blade is longest, the area of the blade profile is largest, the surface is smoothest, and the wind area of the blade is increased.
CN202110385286.XA 2021-04-09 2021-04-09 Environment self-adaptive blade and control method thereof Active CN113107767B (en)

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CN113107767B true CN113107767B (en) 2022-05-17

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101440783A (en) * 2008-12-22 2009-05-27 三一电气有限责任公司 Wind generating set, wind power generation and operation control method thereof
CN101571101A (en) * 2008-04-30 2009-11-04 北京航空航天大学 Array type horizontal shaft wind-power blade
CN106382185A (en) * 2016-12-18 2017-02-08 孟英志 Extension type fan wind wheel or blade and wind driven generator
CN107859592A (en) * 2017-11-30 2018-03-30 苏州华安普新能源科技有限公司 A kind of wind-driven generator with flexible blade
CN108286493A (en) * 2018-01-16 2018-07-17 徐浩添 A kind of telescopic wind power generation plant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101571101A (en) * 2008-04-30 2009-11-04 北京航空航天大学 Array type horizontal shaft wind-power blade
CN101440783A (en) * 2008-12-22 2009-05-27 三一电气有限责任公司 Wind generating set, wind power generation and operation control method thereof
CN106382185A (en) * 2016-12-18 2017-02-08 孟英志 Extension type fan wind wheel or blade and wind driven generator
CN107859592A (en) * 2017-11-30 2018-03-30 苏州华安普新能源科技有限公司 A kind of wind-driven generator with flexible blade
CN108286493A (en) * 2018-01-16 2018-07-17 徐浩添 A kind of telescopic wind power generation plant

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